KBFI Boeing Field/King County International night times
Seattle, WA · FAA BFI
Night of Nov 6 to Nov 7PST
Position lights
§ 91.2094:44 PMto7:03 AM
Sunset to sunrise. Lights on.
0044Z to 1503Z
Night logging
§ 1.15:17 PMto6:30 AM
Civil twilight. Log it as night.
0117Z to 1430Z
Night currency
§ 61.57(b)5:44 PMto6:03 AM
One hour after sunset. Landings count.
0144Z to 1403Z
Evenings at KBFI
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1PST | 4:51 PM | 5:24 PM | 5:51 PM |
| Nov 15PST | 4:33 PM | 5:06 PM | 5:33 PM |
| Dec 1PST | 4:20 PM | 4:55 PM | 5:20 PM |
| Dec 15PST | 4:18 PM | 4:54 PM | 5:18 PM |
| Jan 1PST | 4:29 PM | 5:04 PM | 5:29 PM |
| Jan 15PST | 4:45 PM | 5:20 PM | 5:45 PM |
| Feb 1PST | 5:11 PM | 5:44 PM | 6:11 PM |
| Feb 15PST | 5:33 PM | 6:04 PM | 6:33 PM |
| Mar 1PST | 5:54 PM | 6:25 PM | 6:54 PM |
| Mar 15PDT | 7:15 PM | 7:45 PM | 8:15 PM |
| Apr 1PDT | 7:39 PM | 8:10 PM | 8:39 PM |
| Apr 15PDT | 7:59 PM | 8:31 PM | 8:59 PM |
| May 1PDT | 8:21 PM | 8:56 PM | 9:21 PM |
| May 15PDT | 8:40 PM | 9:17 PM | 9:40 PM |
| Jun 1PDT | 8:59 PM | 9:38 PM | 9:59 PM |
| Jun 15PDT | 9:08 PM | 9:49 PM | 10:08 PM |
| Jul 1PDT | 9:10 PM | 9:50 PM | 10:10 PM |
| Jul 15PDT | 9:03 PM | 9:41 PM | 10:03 PM |
| Aug 1PDT | 8:43 PM | 9:19 PM | 9:43 PM |
| Aug 15PDT | 8:21 PM | 8:55 PM | 9:21 PM |
| Sep 1PDT | 7:50 PM | 8:21 PM | 8:50 PM |
| Sep 15PDT | 7:21 PM | 7:52 PM | 8:21 PM |
| Oct 1PDT | 6:49 PM | 7:19 PM | 7:49 PM |
| Oct 15PDT | 6:21 PM | 6:52 PM | 7:21 PM |
Mornings at KBFI
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1PST | 5:53 AM | 6:21 AM | 6:53 AM |
| Nov 15PST | 6:14 AM | 6:41 AM | 7:14 AM |
| Dec 1PST | 6:36 AM | 7:01 AM | 7:36 AM |
| Dec 15PST | 6:51 AM | 7:15 AM | 7:51 AM |
| Jan 1PST | 6:57 AM | 7:21 AM | 7:57 AM |
| Jan 15PST | 6:52 AM | 7:18 AM | 7:52 AM |
| Feb 1PST | 6:36 AM | 7:03 AM | 7:36 AM |
| Feb 15PST | 6:15 AM | 6:43 AM | 7:15 AM |
| Mar 1PST | 5:50 AM | 6:19 AM | 6:50 AM |
| Mar 15PDT | 6:22 AM | 6:52 AM | 7:22 AM |
| Apr 1PDT | 5:48 AM | 6:17 AM | 6:48 AM |
| Apr 15PDT | 5:21 AM | 5:48 AM | 6:21 AM |
| May 1PDT | 4:52 AM | 5:18 AM | 5:52 AM |
| May 15PDT | 4:32 AM | 4:56 AM | 5:32 AM |
| Jun 1PDT | 4:16 AM | 4:37 AM | 5:16 AM |
| Jun 15PDT | 4:11 AM | 4:31 AM | 5:11 AM |
| Jul 1PDT | 4:16 AM | 4:36 AM | 5:16 AM |
| Jul 15PDT | 4:27 AM | 4:49 AM | 5:27 AM |
| Aug 1PDT | 4:47 AM | 5:11 AM | 5:47 AM |
| Aug 15PDT | 5:05 AM | 5:31 AM | 6:05 AM |
| Sep 1PDT | 5:28 AM | 5:56 AM | 6:28 AM |
| Sep 15PDT | 5:47 AM | 6:16 AM | 6:47 AM |
| Oct 1PDT | 6:08 AM | 6:38 AM | 7:08 AM |
| Oct 15PDT | 6:28 AM | 6:57 AM | 7:28 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
14' ANT (MKD/LGTD) 230' FM RY 14L END 125' R.
HIRL RWY 14R/32L OPEN DUSK-DAWN. MIRL RWY 14L/32R NOT OPER 0600-1500Z++.
Runway 14L/32R
3,709 × 100 ft · Asphalt
UNUSBL BYD 4 DEGS RIGHT OF RWY CNTRLN.
Runway 14R/32L
10,007 × 200 ft · Asphalt
Frequencies
Night at KBFI, in short
When can I log night time at KBFI?
From the end of evening civil twilight to the beginning of morning civil twilight, when the sun is 6° below the horizon (14 CFR 1.1). On the night of Nov 6, 2026, that was 5:17 PM to 6:30 AM PST.
When do landings at KBFI count for night currency?
From one hour after sunset to one hour before sunrise. To carry passengers at night you need 3 takeoffs and 3 full-stop landings in that period within the last 90 days (14 CFR 61.57(b)). On the night of Nov 6, 2026, that was 5:44 PM to 6:03 AM PST.
When are position lights required at KBFI?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:44 PM to 7:03 AM PST.
Nearby airports
- W36 Will Rogers Wiley Post Memorial Renton, WA · 4 nm
- KRNT Renton Municipal Renton, WA · 4 nm
- KSEA Seattle-Tacoma International Seattle, WA · 5 nm
- 0W0 Seattle Seaplanes Seattle, WA · 6 nm
- W55 Kenmore Air Seattle, WA · 6 nm
- 2S1 Vashon Municipal Vashon, WA · 8 nm
Times are worked out from the sun's position for a sea-level horizon, rounded to the minute. Airport data from the FAA NASR cycle of Oct 29, 2026.